<template>

<el-container class="home-container">
  <el-header><div>
        <img src="../assets/heima.png" alt="">
        <span>电商后台管理系统</span>
        </div> <el-button type="info" @click="logout">退出</el-button></el-header>
  <el-container>
    <el-aside :width="isCollapse?'64px':'200px'">
      <div class="toggle-button" @click="toggleCollapse">|||</div>
         <!-- 侧边栏菜单区域 -->
        <el-menu background-color="#333744" unique-opened :collapse='isCollapse' text-color="#fff" active-text-color="#409EFF"
        :collapse-transition="false" router :default-active="activePath">
          <!-- 一级菜单 -->
          <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
            <!-- 一级菜单的模板区域 -->
            <template slot="title">
              <!-- 图标 -->
              <i :class="iconsObj[item.id]"></i>
              <!-- 文本 -->
              <span>{{item.authName}}</span>
            </template>

            <!-- 二级菜单 -->
            <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id"
            @click="saveNavState('/'+subItem.path)">
              <template slot="title">
                <!-- 图标 -->
                <i class="el-icon-menu"></i>
                <!-- 文本 -->
                <span>{{subItem.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu></el-aside>
    <el-main>
      <router-view></router-view>
    </el-main>
  </el-container>
</el-container>
</template>
<script>
export default {
  data(){
    return {
      menulist:[],
      iconsObj: {
        '125': 'iconfont icon-user',
        '103': 'iconfont icon-tijikongjian',
        '101': 'iconfont icon-shangpin',
        '102': 'iconfont icon-danju',
        '145': 'iconfont icon-baobiao'
      },
      // 是否折叠
      isCollapse: false,
      // 被激活的链接地址
      activePath: ''
    }
  },
    created(){
      this.getMenuList()
      this.activePath = sessionStorage.getItem('activePath')
    },
    methods:{
        logout(){
            sessionStorage.clear();
            this.$router.push('/login');
        },
        async getMenuList(){
          const {data:res} =  await this.$http.get('menus')
          if (res.meta.status !==200) return this.$message.error(res.meta.msg)
          this.menulist = res.data;
          console.log(res)
        },
        toggleCollapse(){
          this.isCollapse = !this.isCollapse
        },
        saveNavState(activePath){
          console.log(activePath);
          sessionStorage.setItem('activePath',activePath)
          this.activePath = activePath;
        }
    }
}
</script>
<style lang="less" scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content:space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  >div{
      display: flex;
      align-items: center;
      span {
          margin-left: 15px;
      }
  }
}
.el-aside {
  background-color: #333744;
  .el-menu {
    border-right: none;
  }
}

.iconfont {
  margin-right: 10px;
}
.el-main {
  background-color: #eaedf1;
}
.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
} 
</style>